Archive for September, 2012

Joanne Nova suggests newspapers are being biased by not covering the “almost new record” of Antarctic sea ice and instead seem to be more preoccupied with how the Arctic has lost 50% of its summer sea ice.

From a feedback mechanism point of view (less ice means more sun enters the water rather than being reflected) the increase in ice during winter does not have as much impact on the feedback as loos of ice during summer because it occurs at a time when there is less direct sunlight.

The small increase in Antarctic sea ice is not sucking methane back in.

The difference in sea ice of the Artic vs Antarctic is explained well on the nsidc.org website. Nova should read more and write less – but that might interfere with her scare campaign.

Nova claims that her friends at the denialist, Exxon funded website CO2Science have demonstrated that the MWP was globally warmer in the past, without CO2.

Firstly, SO WHAT? We know it was certainly warmer sometime in the past. What matters today is that we are causing it, at a very rapid rate and the science says we are going to heat up well beyond what the MWP might have been.

Secondly, if were warmer n the MWP than today, then this is evidence for a high sensitivity value, something climate denialists don’t want.

Thirdly, CO2Science don’t perform science, they draw their own conclusions from other peoples science. The Co2Science analysis is not peer-reviewed, contains some serious flaws and it would appear they deliberately aim to deceive their readers.